Abrasive flow machining of turbine engine components

Conference · Mon Jan 01 04:00:00 UTC 1990

OSTI ID:5765921

Rhoades, L J ^[1]

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1. Extrude Hone Corp., Irwin, PA (USA)

A technique used for improving the performance and durability of aircraft turbine engines by flowing abrasive media through critical components is described. The process is abrasive only where the flow is restricted: the extrusion area (the process is also known as extrusion honing). Process parameters including extrusion pressure and the volume of flow are presented, and the tooling and media are covered. The abrasive grains are mostly made of silicon carbide, although boron carbide, aluminum oxide, and diamond may also be used. Some abrasive-flow machining applications in aerospace involve removal of the thermal recast layer in the lasered cooling holes of blades and disks, deburring fuel spray nozzles, and polishing cast surfaces of blades, compressor wheels, and impellers. 6 refs.

• OSTI ID: 5765921
• Report Number(s): CONF-9009377--
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330103* -- Internal Combustion Engines-- Turbine
ABRASION
AEROSPACE INDUSTRY
AIRCRAFT COMPONENTS
CARBIDES
CARBON COMPOUNDS
ENGINES
EXTRUSION
FABRICATION
GAS TURBINE ENGINES
HEAT ENGINES
INDUSTRY
INTERNAL COMBUSTION ENGINES
MACHINING
MATERIALS WORKING
NOZZLES
PERFORMANCE
SILICON CARBIDES
SILICON COMPOUNDS
TURBINE BLADES